What is CVE-2026-8162?

CVE-2026-8162 is a high-severity vulnerability in Multiparty, classified under Improper Handling of Exceptional Conditions. CVSS score: 7.5/10. Published 2026-05-12.

How severe is CVE-2026-8162?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Multiparty

CVE-2026-8162

multiparty@4.2.3 and lower versions are vulnerable to denial of service via uncaught exception. By sending a multipart/form-data request with a Content-Disposition header whose filename* parameter contains a malformed percent-encoding, the…

EPSS: 0.001 (17.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Multiparty — versions 0, 4.3.0
Pillarjs Multiparty

Weakness classification (CWE)

CWE-755 — Improper Handling of Exceptional Conditions

References

ce714d77-add3-4f53-aff5-83d477b104bb (Vendor Advisory)
ce714d77-add3-4f53-aff5-83d477b104bb (Third Party Advisory)

Frequently asked questions

What is CVE-2026-8162?: CVE-2026-8162 is a high-severity vulnerability in Multiparty, classified under Improper Handling of Exceptional Conditions. CVSS score: 7.5/10. Published 2026-05-12.
How severe is CVE-2026-8162?: High severity. CVSS v3 base score is 7.5 out of 10.